Improvement in liquid-meters



H. 0. SERGEANT.

I Liquid-Meter.

No. 106,87 P atentedAug. 30, 1870.

NJTERS. PHOTO-LITNOGRAPHER. WASmNGTbN. 11C.

incited swa atwt Qttjiirr."

Figure 4, a vertical section, taken at right angles tons; and

close or water-tight thebearings through which the tion may be gotten upcheap, and will be found efliicient and correct under both light andheavy streams.

HENRY O. SERGEANT, NEWARK, NEW JERSEY, ASSIGN-OR TO WILLIAM TOBIN, OFNEW YORK CITY. l

Letters Patent No. 106,873, dated August 30, 1870.

IMPROVEMENT IN IlIQUID-METERS.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may concern.-

Be it known that I, HENRY O. SnneEAsT, of Newark, in the county of Essexand State of New J ersey, have invented a new and useful Improvement inLiquid-Meters, of which the following is a full, clear, and exactdescription, reference being bad to the accompanying drawing formingpart of this specification, and iu'which Figure 1 represents a plan withthe top removed;

Figure 2, a front or end view of the same, with the outer portion of thecase removed; Figure 3, a vertical section, taken, as denoted bv theline a: m, longitudinally through the center of one of the cylinders ormeasuriugchamhers; and

of my improved meter,

:10 fig. 3, and as indicated by the irregular line 3 y in Similarletters of reference indicate correspoluliug parts.

My invention relates to meters which employ two or more reciprocatingpistons working in adjacent cylinders, and cont-rolled by valvesoperated by the pis- It consists in a certain combination of suchdevices whereby each piston is made to operate a separate crank-shaftthat is connected by gearing with the crank-shaft of the adjacentpiston, and the valves are operated by the pistons which theyrespectively serve to control.

By such arrangement or combination cross-passages from the valves to thecylinders are dispensed with, and, although the crank-shafts are gearedto-make them work in time, and to carry the cranks over thedead-centers, yet each piston,,with its crank-shaft and valve, isseparate and distinct from the other, so that said parts are madeto'maintain their proper relative position in case of wear at thejointsor bearingsof the connections which couple eitherpositionwith itsrespective valve.

Furthermore, the arrangement is such that leakage from the one cylinderto the other is avoided; and the gear-wheels that serve to couple saidshafts operate, by lateral pressureof the fluid on them, to makecrank-shafts revolve. V

The invention also includes a novel arrangement of passages and peculiarconstruction of the cylinders whereby cheapness and simplicity aresecured, and the cylinders, which are formed out of tubes, are retainedin position by merely swelling or riveting down their ends j A-meterconstructed in accordance with this invenable tubes, which may be cut totheir required lengths from one and the same piece of tubing, ready,without boring or dressing, for insertion in their places within anouter water-case or box, B, by slipping them within or through ribs a a,arranged to project internally from the case B, that is, dividedlongitudinally,as by a'partition, b, beyond or outside of both ends ofthe cylinders, and by the ribs or flanges a a, within which the endsofthe cylinders fit,'to form independent or separated water-spaces c c atopposite ends of the cylinders.

The space at, between the ribs to (tof both cylinders, is open andcontinuous, and forms an exbaust-ohamher for bothcylinders, and saidribs or flanges are so disposed, relatively to the ends of thecylinders, that the latter are secured therein by simply swelling out orriveting downthe ends of the cylinders thereon, as represented in fig.3, such ribs being preferably bored or reamed out 'to secure truth andproper fit of the. cylinders. v

This is at once a cheap, simple, and efficient way of constructing andsecuring the cylinders, and of providing for an'exhaust-passage allaround and between them,

Each cylinder A A is fitted. with a reciprocating piston, C or C, therods D D of which are connected to cranks E E, on independent verticalshafts F F, which project up into a valve-box or chamber, G, that hasthe inlet 0 connected with it, the outlet f from the meter being inconnect-ion with the exhaust-chamher (I. I

The crank-shafts F 11" have mounted on their upper ends, within thevalve-box G, spur-wheels H H, which mesh into one another, to secure atimely action of the independent pistons, and to aid the cranks E E,which are set at diiierentangles, in passing their deadcen'ters;otherwise the two pistons and their workingcounections, including thevalves, are disconnected and separate and distinct from each other,either piston operating the valve which controls it, as by rods 1 I,operated by eccentric pins g g on the wheels H H, and attached, at theiropposite ends, to the valves J J, which latter may be ordinary slideD-valves arranged over the cylinders, the pistons of which theyrespectively control, and in communication, by suitable passages n n ando, with the ends of the cylinders, and with the exhaust-chamber d. I donot restrict myself, however, to any particular form of valve.

By this combination and arrangement of parts, all

ates, and through separate crank-shafts as regards both pistons, thevalves, with their respective pistons and connections, are made tomaintain their proper relative positions and actions in case of wear atthe joints or bearings of the connections which couple either pistonwith its respecthevalre.

The crank-shafts F F work through downwardlyprojecting bearings h h,from the upper portion of the case A, or front chambers c 0 thereof,said bearings preferably being lined with light brass bushes 'i, andeach shatt protected by a brass sleeve, k, formed into a flange belowthe spur-wheel H or H, mounted on said shaft.

A leather or other suitable packing-ring, m, is interposed between theunder surface of saidwheel and bottom of the valve-box, around the shaftor its sleeve 70.

B these means the bearin s are rotected from .Y a P corrosion, and thelateral pressure of the fluid on the upper surface of the wheels H H,makes close or secure the joints at the ends of the bearings, andprevents leakage past the independent crank-shafts of the meter.

The registering mechanism may be operated by one of the eccentric pins 9g, or in any other suitable manner.

What is here claimed, and desired to be secured by Letters Patent, is-

1. The combination of the independent crank-shafts F F and gearwheels HH with the pistons G O, the

cylinders A A, and the valves J J, operating essentially as shown anddescribed.

2. The cylinders A A, made of tubing, and fitted at their ends withinribs or flanges ac, said ribs being arranged to project from theinterior of the box or case B, and secured therein by swelling out orriveting down the ends of said tubes over or on the ribs which carrythem, essentially as described.

' 3. The arrangement of the exhaust passage 0r chamberd, relatively tothe cylinders A A ancl'ribs or fla'nges a a, in combination and with thevalves and their passages and inlet and outlet, substantially as hereinset forth.

4. The arrangement, relatively to the bearings h h or outside endsthereof, through which either crankshaft passes, of the wheels H H,together with their intervening washers or packings k, essentially asde' scribed, and whereby leakage past the crank-shaft is prevented bylateral pressure of the fluid on the wheels, as herein set forth.

r HENRY O. SERGE; NT.

Witnesses:

FRED. HAYNES, R. E. RABEAU.

